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Kelp microcrystalline cellulose and preparation method thereof as well as application of prepared kelp microcrystalline cellulose

A technology of microcrystalline cellulose and low-temperature cellulase, which is applied in the fields of application, food preparation, food science, etc., can solve the problems of preparing microcrystalline cellulose without kelp dregs, achieve shortened enzymatic hydrolysis time, low production cost, The effect of reducing environmental pollution

Inactive Publication Date: 2015-03-04
QINGDAO HENGSHENG BIOLOGICAL PHARMA TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] So far, there are no reports at home and abroad about the preparation of microcrystalline cellulose from kelp residue after gelatin extraction, and its use in the production of health food and pharmaceutical excipients

Method used

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  • Kelp microcrystalline cellulose and preparation method thereof as well as application of prepared kelp microcrystalline cellulose
  • Kelp microcrystalline cellulose and preparation method thereof as well as application of prepared kelp microcrystalline cellulose
  • Kelp microcrystalline cellulose and preparation method thereof as well as application of prepared kelp microcrystalline cellulose

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A kind of kelp microcrystalline cellulose, the kelp microcrystalline cellulose is prepared from the discarded kelp slag after kelp extraction, the appearance of the kelp microcrystalline cellulose is powdery, and its color is white. The fiber content of kelp microcrystalline cellulose is 98.18%, the degree of polymerization is 138.3±6.4, the whiteness is 89.1%, the water content is 2.25%, the water holding capacity is 1800%, and the swelling force is 25ml / g.

Embodiment 2

[0048] A kelp microcrystalline cellulose, the kelp microcrystalline cellulose is prepared from the discarded kelp slag after the kelp is extracted, and is prepared by double enzymatic hydrolysis with two different low-temperature cellulases, and the kelp microcrystalline cellulose The appearance of the kelp is powdery, and the color is white. The fiber content of the kelp microcrystalline cellulose is 98.39%, the degree of polymerization is 138.3±3.8, the whiteness is 89.2%, the water content is 2.24%, the water holding capacity is 2000%, and the expansion force At 30ml / g. The two different low-temperature cellulases are low-temperature cellulase obtained by culturing Pseudoalteromonas sp NJ64 and Pseudoalteromonas sp 545, which are screened by Antarctic bacteria, respectively.

Embodiment 3

[0050] The method for kelp microcrystalline cellulose, comprises the following steps:

[0051] (1) Flocculation collection: add a calcium chloride solution with a concentration of 12wt% to the kelp slag glue solution after the gel extraction, leave it to flocculate after stirring, and collect the flocs. The amount of calcium chloride added in the calcium chloride solution is It is 3wt% of kelp slag glue weight.

[0052] (2) Decalcification by adding acid: Put the above flocs into the reaction tank, add acid solution according to 2.5wt% of the weight of kelp slag glue, add water to dilute, heat to 35°C, stir for 8 hours to decalcify, and make the above The flocs are fully soaked.

[0053] (3) Alkali treatment: add sodium carbonate solution to the flocs after decalcification, according to the amount of sodium carbonate added in the sodium carbonate solution is 2wt% of the weight of the kelp residue glue, and add water until the flocs are adsorbed and saturated, Soak and stir a...

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Abstract

The invention discloses kelp microcrystalline cellulose and a preparation method thereof as well as application of the prepared microcrystalline cellulose. The preparation method of the kelp microcrystalline cellulose comprises the following steps of by adopting waste kelp residues after kelp glue-extracting as the materials, carrying out flocculation collecting, acidification decalcification, alkaline treatment, bleaching treatment, washing, drying and hydrolytic treatment, wherein in the hydrolytic treatment, two different low-temperature cellulases are respectively added according to the addition of 20U / g-30U / g; carrying out enzymolysis for 0.5-12 hours in a water bath of 10 DEG C-40 DEG C; and drying and crushing to obtain the kelp microcrystalline cellulose. According to the preparation method of the kelp microcrystalline cellulose, the production cost is low, the environment pollution is small, the hydrolysis step adopts a double-enzyme jointed enzymolysis technology, the degradation speed is stable, the degraded cellulose is uniform in molecular weight, the cellulose crystalline grains are small and uniform, degradability of the fibers can be effectively controlled, and the microcrystalline cellulose with high purity and high activity is obtained. The kelp microcrystalline cellulose disclosed by the invention is high in cellulose content, high in water holding capacity and expansion force, and can be used for food additive and pharmaceutical adjuvant in the food industry.

Description

technical field [0001] The invention relates to the technical field of reuse of kelp industrial waste, in particular to the preparation of kelp microcrystalline cellulose. Background technique [0002] In the early 1980s, there were reports on the physiological functions of dietary fiber in my country, but no in-depth research and large-scale production have been carried out. It has been reported successively: the research of utilizing wheat bran, soybean, sugar beet, shiitake mushroom, bagasse and persimmon skin etc. to extract dietary fiber, and obtained large-scale production in a local range. At present, most of the research on dietary fiber in our country stays in the field of terrestrial plants, while in the marine field, especially the research on seaweed and kelp resources, the development of highly active dietary fiber is still a pioneering research work in our country. [0003] At present, the annual output of alginate in my country has reached more than 10,000 to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/308C12P19/14C12P19/04A23L33/24
Inventor 缪锦来
Owner QINGDAO HENGSHENG BIOLOGICAL PHARMA TECH DEV
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